Download GTU B.Tech 2020 Winter 6th Sem 2160911 Computer Aided Analysis And Design For Electrical Engg. Question Paper

Download GTU (Gujarat Technological University Ahmedabad) B.Tech/BE (Bachelor of Technology/ Bachelor of Engineering) 2020 Winter 6th Sem 2160911 Computer Aided Analysis And Design For Electrical Engg. Previous Question Paper

Seat No.: ________
Enrolment No.___________
GUJARAT TECHNOLOGICAL UNIVERSITY
BE- SEMESTER?VI (NEW) EXAMINATION ? WINTER 2020
Subject Code:2160911 Date:01/02/2021
Subject Name:Computer Aided Analysis and Design for Electrical Engg.
Time:02:00 PM TO 04:00 PM Total Marks: 56
Instructions:
1. Attempt any FOUR questions out of EIGHT questions.

2. Make suitable assumptions wherever necessary.

3. Figures to the right indicate full marks.


MARKS
Q.1
(a) Explain various modes of heat dissipation.
03

(b) Define specific electrical loadings. State advantages and disadvantages of
04
higher specific electric loadings.

(c) Explain design criteria for selection of specific magnetic loadings for the
07
rotating electrical machine.



Q.2
(a) State advantages of computer aided design of electrical machines.
03

(b) State input data to be fed in to the program for rotating electrical machine.
04

(c) State and explain steps for general design procedure.
07



Q.3
(a) What is skin effect in conductors?
03

(b) Explain standard ratings of electrical machines.
04

(c) Classify different types of materials used for electrical machine.
07



Q.4
(a) What are the required properties of good insulating material?
03

(b) Explain different types of enclosures used for rotating electrical machine.
04

(c) Explain different types of ventilation scheme used for transformers.
07



Q.5
(a) State advantages of FEM.
03

(b) Explain different applications of FEM in electrical machine design?
04

(c) Explain global coefficient matrix and elemental coefficient matrix.
07



Q.6
(a) Draw a flowchart for the design of choke coil.
03

(b) Draw a flowchart for the design of DC shunt motor starter.
04

(c) Write a computer program for the computer aided design of field regulator.
07



Q.7
(a) Draw a flowchart for the design of compensating winding of DC machine.
03

(b) Draw a flowchart for the design of armature winding of DC generator.
04

(c) Write a computer program for the calculation of main dimensions of DC motor.
07



Q.8
(a) Write a computer program for the calculation of window dimensions of 3-
03
transformer.

(b) Draw a flowchart for the design windings of transformer.
04

(c) Write a computer program for the calculation of no load current of 3-
07
transformer
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